You can also use the Sound icon in the system tray as shown to quickly open the sound settings, the tray is located in the bottom-right corner on the taskbar. Choose the desired device you want to keep as default. Here, you can choose the default sound device from the drop-down menu.Under Windows Settings, click on System, and then on the left side, click Sound.Head to the Windows Settings using the keyboard shortcut Windows Key + I or use the Start menu to open the Settings.
To set an audio output device as default for all apps, here’s what you need to do. Some apps support switching speakers easily and override the system defaults. Once you set the speakers or the audio output device as default, all the apps, system sound, and games will use the device as default for the sound.
How to set Speakers as default audio device on Windows 10
If you have a display with built-in speakers or if you have a home theatre system setup for the PC, or it can be a headset, no matter what device you use, when you want to change the speakers on Windows 10, you have to set them as default.
When you connect multiple speakers or audio devices to your Windows 10 PC, you have to switch between the devices and you may end up changing the devices as default.